39 citations · 118 across the 12 of their papers we have counts for
12 papers
An identification method for oscillators with response-dependent inertia
Yuval Harduf, Eyal Setter, Izhak Bucher
This paper is concerned with identifying the instantaneous modal parameters of forced oscillatory systems with response-dependent generalized inertia (mass, inductance, or equivale…
Iterative Decoupling Method for High-Precision Imaging of Complex Surfaces
Eyal Baruch, Izhak Bucher
Nonlinear systems and interaction forces are pervasive in many scientific fields, such as nanoscale metrology and materials science, but their accurate identification is challengin…
Experimental identification of multimode traveling waves in a coupled wave-tube
Yoav Vered, Izhak Bucher
An essential part of nondestructive testing and experimental modeling of waveguides is the decomposition of propagating wave patterns. The traveling wave ratio is a measure of part…
A new approach to single-tone frequency estimation via linear least squares curve fitting
Solomon Davis, Izhak Bucher
Presented is a new algorithm for estimating the frequency of a single-tone noisy signal using linear least squares (LLS). Frequency estimation is a nonlinear problem, and typically…
Balancing rotating structures using slow-speed data via optimized parametric excitation and nonlinear feedback
Amit Dolev, Shachar Tresser, Izhak Bucher
The paper presents an improved mass balancing procedure for fast rotating machinery, while it is being rotated at speeds considerably slower than the "critical speeds", where dange…
Analytical, numerical and experimental investigation of a tunable, nonlinear multi-degree-of-freedom parametrically excited amplifier
Amit Dolev, Izhak Bucher
A tunable, multi-degree-of-freedom, parametrically excited amplifier is introduced as an apparatus capable of shifting slow, weak signals to higher frequencies, by exploiting the a…
Optimizing the dynamical behavior of a dual frequency parametric amplifier with quadratic and cubic nonlinearities
Amit Dolev, Izhak Bucher
The paper describes a novel parametric excitation scheme that acts as a tunable amplifier by controlling two pumping signals and two nonlinear feedback terms. By modulating the sti…
Realization of a Contactless Acoustic Levitation Motor via Doublet Mode Control and Autoresonance
Solomon Davis, Izhak Bucher
This paper demonstrates analytically and experimentally an acoustic levitation motor which has the ability to levitate and rotate an object in the air without mechanical contact. T…
Dual frequency parametric excitation of a nonlinear multi degree of freedom amplifier with a digitally modified topology
Amit Dolev, Izhak Bucher
Mechanical or electromechanical amplifiers can exploit the high-Q and low noise features of mechanical resonance, in particular when parametric excitation is employed. Multi-freque…
Dynamic balancing of super-critical rotating structures using slow-speed data via parametric excitation
Shachar Tresser, Amit Dolev, Izhak Bucher
High-speed machinery is often designed to pass several critical speeds, where vibration levels can be very high. To reduce vibrations, rotors usually undergo a mass balancing…
A rotational traveling wave based levitation device - Modeling, design, and control
Ran Gabai, Dotan Ilssar, Ran Shaham +2
Described is a device acting on an acoustically levitated object by manipulating the pressure and flow of a thin layer of air such that its rotation can be precisely controlled wit…
Modelling and closed loop control of near-field acoustically levitated objects
Dotan Ilssar, Izhak Bucher, Henryk Flashner
The present paper introduces a novel approach for modelling the governing, slow dynamics of near-field acoustically levitated objects. This model is sufficiently simple and concise…